Not trying to redirect the tread but I have a p II 720 at 3.6ghz with nb/cpu at 2600mhz, ocz amd special 1600 @ 1333 6-6-5-23-28 1t, and the 790fx-gd70 mb. When setting my overclock I passed with flying colors, 36 hrs prime blend stable, 50 passes linX, and 5 hours prime blend + furmark (to test worst case gaming scenario) and memtest about 15 passes. Every thing ran fine until I starting using ventrilo to talk in game while playing cod4 online. I occasionly (like once every other day or so) have the sound freak out, it sounds like a cd skipping and then all sound is lost. In the event viewer I am given this message for application errors.

Faulting application AUDIODG.EXE, version 6.0.6001.18000, time stamp 0x47919c2a, faulting module RtkAPO64.dll, version 11.0.6000.101, time stamp 0x4a497c35, exception code 0xc0000005, fault offset 0x00000000000d2af3, process id 0x15c, application start time 0x01ca2f5294dccb02.

I have tried 3 different Realtek drivers, reinstalling ventrilo and cod4. Nothing seems to help. I went as far as lowering nb/cpu to 2400 (i had ran for a few months fine on another motherboard at approx. 3600cpu speed and 2400nb/cpu speed without issue. I am wondering does this sound like i have a defective sound chip (i have no other major issues, no blue screens, no freezing video or restarting games, no other apps have ever freaked out) or should i be pointing fingers at my overclock. Posted here because obviously alot of people reading this thread have same board as me and wanted to know if anyone has been having issues with onboard realtek sound.